學生成績提高，考試分數卻暴跌24% —— 且需兩年才顯現
一項針對26,000名學生的研究發現，ai用戶的作業成績提高了18%，但兩年後入學考試成績下降了24%，揭示了延遲的學習代價。
a study of 26,000 secondary students in central china found that those relying on ai for homework completed tasks 30% faster and saw an 18% grade increase, yet suffered significant declines in actual learning. while monthly exam scores dropped by 20% within six months, the most severe damage—a 24% drop on high-stakes entrance exams—only became fully visible after two years, indicating short-term studies miss ai's long-term cognitive costs. researchers identified outsourcing as the culprit, noting that 81% of long-term users finished homework too quickly to be learning, whereas students who spent normal time on homework retained their exam performance. social sciences were the hardest hit, with an average 27% decline, compared to smaller drops in stem and language subjects, suggesting critical thinking skills are uniquely vulnerable to ai replacement.